FTP, Needswings, Speed43 airbox, or DIY intakes
On the hottest day of the year, my intake temps cruising were 12° above ambient. I know C55s don’t have the room to run the same type of filter I run. But I am sure that is a better way to make an intake for C55s.
I also have a dyno graph from the day I installed my intake. Before dyno is headers, catless and a tune.
Also 650$ for Spectra filters. If I was a C55 owner I would look into Speed43s custom factory air boxes. Just my two cents
Speed43's design is proven and a great value for what it is, he is an honest guy who has done his part to learn how to modify/build an airbox for these platforms with incredible craftsmanship.
I have toyed with many ideas of possible intake setups but the most I have changed is installing AEM dryflow filters which helped a bit and will last forever. There is so much potential elsewhere to squeeze out in these vehicles that the 5-10hp an intake will produce became kind of irrelevant imo, so I focused on other mods. Eventually I'm sure I'll experiment with a custom intake system.
A pair of headers is in all likelihood a better investment when you compare it to ftp or needswings intake kits if all you want is more power. Even just hi flow primary cats would probably gain 10+- hp. Speed43’s airbox also has proven 10 hp gain, I don’t know if the other two have claims for power gain but I know the dual AMG intakes does not outperform the stock C55 box with equivalent filters be it paper or others.


Take two small screwdrivers and jiggle the black plastic top grid away. Underneath you will find a metallic ring and
a metallic grid. Take these two away and put the black plastic top grid back on and you are good to go.

free high res pics
Last edited by amgen; Aug 24, 2020 at 07:31 PM.




but prefer to put back a plastic mesh, in case of any little pinnies sneaks to the MAF film..

-;-ZAYED-;-
A pair of headers is in all likelihood a better investment when you compare it to ftp or needswings intake kits if all you want is more power. Even just hi flow primary cats would probably gain 10+- hp. Speed43’s airbox also has proven 10 hp gain, I don’t know if the other two have claims for power gain but I know the dual AMG intakes does not outperform the stock C55 box with equivalent filters be it paper or others.
I just wanted this info out there, because i feel like for C55 owners the dual intakes are junk. We arent dynoing this car but I will be recording the IATs compared to me E55. I built my intake for 350$ super easy.
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Also +1 for the MAF mod
The Best of Mercedes & AMG
I just wanted to let C55 owners, know how unimpressed I was by the FTP intakes.i did like the Needswings intake on a crossfire I installed. Went in the grill like RK tunes intakes for BMWs
102° Round Rock Texas 4:25pm
Let both cars my E55 custom intake, and C55 with FTP intake idle to 140° IAT
Started out my drive cruising at 50 mph
C55 stayed around 117° to 118°
E55 stayed around 109° to 111°
WOT
C55 would drop down to 113°
E55 would drop down to 107°
After test drive let both cars idle for 1min
C55 went up to 135°
E55 went up to 124°
Would be nice to see someone test Needswings intake or test the factory air box, and Speed43 modified air box.
Hope this helps anyone with a C55
We did not get to dyno this C55

Awesome info on the IAT’s, I could test mine as well and report back, although I don’t think I’ll be able to replicate the Texas heat! I have the stock intake w/AEM dry flow like stated above and the MAF screen deleted.
Part of the aftermarket dual intake designs that seem inefficient to me, is the fact that they are metal and sitting right above header space on both sides. This seems like without a thermal barrier of some kind they won’t stay as cool as the stock intake just based on material/position alone.
Last edited by kaixdiego; Aug 28, 2020 at 07:56 PM.

Awesome info on the IAT’s, I could test mine as well and report back, although I don’t think I’ll be able to replicate the Texas heat! I have the stock intake w/AEM dry flow like stated above and the MAF screen deleted.
Part of the aftermarket dual intake designs that seem inefficient to me, is the fact that they are metal and sitting right above header space on both sides. This seems like without a thermal barrier of some kind they won’t stay as cool as the stock intake just based on material/position alone.
Also, there’s been a few times when my intake temps were 5° above ambient.
When on the dyno, and a fan blowing into my air duct it’s dead on ambient.





